JOHN D. CLARK L.P.C.
NPI 1235223041
Counselor - Professional in Martinsburg, WV

Active since October 03, 2006PECOS Enrolled
235 S WATER ST, MARTINSBURG, WV 25401(304) 263-8954 Get Directions Write a Review

NPPES record last updated: February 4, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Feb 4, 2026, Sep 19, 2024 (2 updates tracked since 2024).

About John D. Clark L.p.c. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN D. CLARK L.P.C. (NPI 1235223041) is an individual professional provider in Martinsburg, West Virginia, licensed in Michigan (6401007651) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1235223041
Entity TypeIndividualMale
Primary Taxonomy101YP2500X
Provider Legal NameJOHN D. CLARKCredential: L.P.C.
Location Address235 S WATER STMartinsburg, WV 25401-4241
Mailing Address235 S Water StMartinsburg, WV 25401-4241 · (304) 263-8954
Sole ProprietorNo
Enumeration DateOctober 3, 2006
Last NPPES UpdateFebruary 4, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 4, 2026
NPI 1235223041 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
License Licensed in MI · 6401007651
235 S WATER ST, Martinsburg, WV 25401

Other Identifiers 1

Medicaid0023817001WV

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

John D. Clark L.p.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Peer Specialist
235 S WATER ST
MARTINSBURG, WV 25401
Nurse Practitioner (Psychiatric/Mental Health)
235 S WATER ST
MARTINSBURG, WV 25401
Peer Specialist
235 S WATER ST
MARTINSBURG, WV 25401
Social Worker
235 S WATER ST
MARTINSBURG, WV 25401
Community Health Worker
235 S WATER ST
MARTINSBURG, WV 25401
Technician (Personal Care Attendant)
235 S WATER ST
MARTINSBURG, WV 25401
Community Health Worker
235 S WATER ST
MARTINSBURG, WV 25401
Counselor
235 S WATER ST
MARTINSBURG, WV 25401

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Clark's NPI number?

The NPI number for John Clark is 1235223041. It was assigned to this individual provider in the NPPES registry on October 3, 2006.

Where is John Clark located?

John Clark practices at 235 S Water St, Martinsburg, WV 25401. The listed phone number is (304) 263-8954.

What is John Clark's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Is John Clark enrolled in Medicare?

Yes. John Clark is registered in the Medicare PECOS enrollment system.

What insurance does John Clark accept?

Health plans from CareSource and Highmark Blue Cross Blue Shield West Virginia list John Clark as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for John Clark was last updated on February 4, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.